Correlation model selection for internal target movement
First Claim
Patent Images
1. A method, implemented by a computing system programmed to perform operations, comprising:
- receiving, at the computing system, a plurality of data points representative of a corresponding plurality of positions over time of an external marker associated with a patient;
receiving, at the computing system, a plurality of images of a target within the patient, the plurality of images corresponding to the plurality of data points;
generating a plurality of correlation models using the plurality of images and the plurality of data points, each of the plurality of correlation models descriptive of an internal path of movement over time of the target within the patient as a function of the movement of the external marker;
selecting one of the plurality of correlation models; and
deriving a target position of the target based on the selected correlation model.
9 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus to select a correlation model from a plurality of correlation models to track target movement based on movement of an external marker.
67 Citations
27 Claims
-
1. A method, implemented by a computing system programmed to perform operations, comprising:
-
receiving, at the computing system, a plurality of data points representative of a corresponding plurality of positions over time of an external marker associated with a patient; receiving, at the computing system, a plurality of images of a target within the patient, the plurality of images corresponding to the plurality of data points; generating a plurality of correlation models using the plurality of images and the plurality of data points, each of the plurality of correlation models descriptive of an internal path of movement over time of the target within the patient as a function of the movement of the external marker; selecting one of the plurality of correlation models; and deriving a target position of the target based on the selected correlation model. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An apparatus, comprising:
-
a treatment planning system coupled to a diagnostic imaging system and a treatment delivery system; and a digital processing device coupled to the treatment planning system, the digital processing device configured to receive a plurality of data points representative of a corresponding plurality of positions over time of an external marker associated with a patient, to receive a plurality of images of a target within the patient, the plurality of images corresponding to the plurality of data points, the digital processing device to generate a plurality of correlation models using the plurality of images and the plurality of data points, each of the plurality of correlation models descriptive of an internal path of movement of the target as a function of the movement of the external marker, and the digital processing device to select one of the plurality of correlation models to derive a target position of the target. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
-
-
25. An apparatus, comprising:
-
means for acquiring a plurality of images of a target within a patient; means for acquiring a plurality of data points of an external marker associated with the patient; means for generating a plurality of correlation models using the plurality of images of the target and the plurality of data points, each of the plurality of correlation models descriptive of a path of movement over time of the target as a function of the movement of the external marker; means for determining which one of the plurality of correlation models most closely approximates an actual position of the target at a specified displacement point; and means for tracking the target using the one of the plurality of correlation models that most closely approximates the actual position of the target. - View Dependent Claims (26, 27)
-
Specification